Weighted Average Calculator

The Weighted Average Calculator is an essential online utility for students, teachers, and data analysts. Unlike a simple arithmetic mean, the weighted average assigns different levels of importance (weights) to each value, reflecting its contribution to the final result. For example, final exams often count more than quizzes — this calculator handles that effortlessly.

Using this tool is straightforward: enter each value along with its weight (percentage, points, or any positive number). The calculator multiplies each value by its weight, sums these products, then divides by the total weight. The result is your precise weighted average. It supports any number of entries, and you can dynamically add or remove rows. All calculations are done instantly in your browser — no data is sent to any server.

Whether you’re calculating course grades with different credit hours, investment portfolio returns, or survey data with varied response weights, this tool delivers accurate results. The interface is fully responsive, so it works on phones, tablets, and desktops. It also follows SEO best practices, ensuring you can bookmark or link to it with confidence.

We built this calculator with simplicity and precision in mind. Each input field accepts decimal numbers, and the result shows up to two decimal places for readability. If total weight is zero, you’ll see a friendly reminder to enter positive weights. Keep in mind that weights can be any positive numbers (like 1, 2.5, 100) — they don’t need to sum to 100, the tool normalizes automatically. This flexibility makes it suitable for grade calculation (where weights might sum to 100%) or other scenarios (like 0.5, 1, 1.5 weights).

We’re constantly improving our tools. If you have suggestions, please visit our contact page. MultiCalculators offers a wide range of utilities — from basic arithmetic to finance and health calculators. All are free, accurate, and designed to make your life easier. Bookmark this page and share it with classmates or colleagues. Happy calculating!

Note: Always double‑check your entries. The tool assumes weights are non‑zero. For zero total weight, the average is undefined.